the pièce de résistance

the best or most important thing in a group or series The pièce de résistance of his act was to make a car vanish on stage.

Name	Pronounced	Usage
Vanamo	VAH-nah-mo	Finnish
Loes	LOOS	Dutch
Toshe	TO-she	Macedonian
Hodiyah	-	Biblical Hebrew
Marek	MAH-rrek (Polish)	Polish, Czech, Slovak
Sumner	['sʌmnə]